Reactivity example sentences

On the other hand, minima occur at the alkali metals and their low ionization enthalpies can be correlated with their high reactivity.The order of reactivity of the hydrogen halides is HI > HBr > HCl.For example, within a period, chemical reactivity tends to be high in Group 1 metals, lower in elements towards the middle of the table, and increases to a maximum in the Group 17 non-metals.This results into high chemical reactivity at the two extremes and the lowest in the centre.We shall now try to explore relationships between these fundamental properties of elements with their chemical reactivity.The reactivity on the left extreme of a period is because of the ease of electron loss (or low ionization enthalpy).Chemical reactivity is hightest at the two extremes of a period and is lowest in the centre.The noble gases thus exhibit very low chemical reactivity.The atomic number of carbon is What would be the distribution of electrons in various shells for carbon? How many valence electrons will carbon have? We know that the reactivity of elements is explained as their tendency to attain a completely filled outer shell, that is, attain noble gas configureuration.The chemical reactivity of an element can be best shown by its reactions with oxygen and halogens.Likewise within a group of representative metals (say alkali metals) reactivity increases on moving down the group, whereas within a group of non-metals (say halogens), reactivity decreases down the group.Thus, the maximum chemical reactivity at the extreme left (among alkali metals) is exhibited by the loss of an electron leading to the formation of a cation and at the extreme right (among halogens) shown by the gain of an electron forming an anion.The order of reactivity of the hydrogen halides is HI > HBr > HCl.